This project is focused on better characterizing pile-driving induced vibrations and understanding their attenuation. Emphasis is given on quantifying the effect of soil type, hammer and pile combination and number of cycles on the soil settlement. This is achieved by a combination of field testing measurements and 3D finite element numerical analyses, to develop vibration thresholds in terms of soil peak particle velocity for different soil types. Among the truly unique aspects of the project is that measurements during pile driving are not collected only at the ground surface as has been done in the past, but at different distances and depth from the moving pile tip.